<?php

/*
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/**
 * Description of sql_expression
 *
 * @author utente
 */
class Classes_Core_SqlExpression {

    /**
     * Storage for the SQL expression.
     *
     * @var string
     */
    protected $_expression;

    /**
     * Instantiate an expression, which is just a string stored as
     * an instance member variable.
     *
     * @param string $expression The string containing a SQL expression.
     */
    public function __construct( $expression )
    {
        $this->_expression = (string) $expression;
    }

    /**
     * @return string The string of the SQL expression stored in this object.
     */
    public function __toString()
    {
        return $this->_expression;
    }

}


